diff --git a/configure.ac b/configure.ac
index bf442574..8fcfd158 100644
--- a/configure.ac
+++ b/configure.ac
@@ -99,6 +99,7 @@ CFLAGS="$CFLAGS"
 AC_PROG_CC_C99
 AX_CHECK_COMPILE_FLAG([-xc99],[CFLAGS="$CFLAGS -xc99"],[],[])
 AX_CHECK_COMPILE_FLAG([-Wall],[CFLAGS="$CFLAGS -Wall"],[],[])
+AX_CHECK_COMPILE_FLAG([-Wall],[CFLAGS="$CFLAGS -Wextra"],[],[])
 
 case "$host_os" in
   linux* ) CFLAGS="$CFLAGS -D_BSD_SOURCE -D_DEFAULT_SOURCE"
diff --git a/src/Makefile.in b/src/Makefile.in
index 763e22da..f533e3d8 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -101,10 +101,10 @@ $(GLDNS_OBJ):
 	$(LIBTOOL) --quiet --tag=CC --mode=compile $(CC) $(CFLAGS) -c $(srcdir)/gldns/$(@:.lo=.c) -o $@
 
 $(COMPAT_OBJ):
-	$(LIBTOOL) --quiet --tag=CC --mode=compile $(CC) $(CFLAGS) -c $(srcdir)/compat/$(@:.lo=.c) -o $@
+	$(LIBTOOL) --quiet --tag=CC --mode=compile $(CC) $(CFLAGS) -Wno-error=pedantic -c $(srcdir)/compat/$(@:.lo=.c) -o $@
 
 $(UTIL_OBJ):
-	$(LIBTOOL) --quiet --tag=CC --mode=compile $(CC) $(CFLAGS) -c $(srcdir)/util/$(@:.lo=.c) -o $@
+	$(LIBTOOL) --quiet --tag=CC --mode=compile $(CC) $(CFLAGS) -Wno-error=pedantic -Wno-error=unused-parameter -c $(srcdir)/util/$(@:.lo=.c) -o $@
 
 $(JSMN_OBJ):
 	$(LIBTOOL) --quiet --tag=CC --mode=compile $(CC) $(CFLAGS) -DJSMN_GETDNS -c $(srcdir)/jsmn/$(@:.lo=.c) -o $@
diff --git a/src/extension/default_eventloop.c b/src/extension/default_eventloop.c
index b05d8ec3..e83d9b89 100644
--- a/src/extension/default_eventloop.c
+++ b/src/extension/default_eventloop.c
@@ -83,7 +83,7 @@ default_eventloop_schedule(getdns_eventloop *loop,
 #endif
 		default_loop->fd_events[fd] = event;
 		default_loop->fd_timeout_times[fd] = get_now_plus(timeout);
-		event->ev = (void *) (intptr_t) fd + 1;
+		event->ev = (void *) (intptr_t) (fd + 1);
 
 		DEBUG_SCHED( "scheduled read/write at %d\n", fd);
 		return GETDNS_RETURN_GOOD;
@@ -104,7 +104,7 @@ default_eventloop_schedule(getdns_eventloop *loop,
 		if (default_loop->timeout_events[i] == NULL) {
 			default_loop->timeout_events[i] = event;
 			default_loop->timeout_times[i] = get_now_plus(timeout);
-			event->ev = (void *) (intptr_t) i + 1;
+			event->ev = (void *) (intptr_t) (i + 1);
 
 			DEBUG_SCHED( "scheduled timeout at %d\n", (int)i);
 			return GETDNS_RETURN_GOOD;
@@ -159,6 +159,9 @@ default_eventloop_cleanup(getdns_eventloop *loop)
 static void
 default_read_cb(int fd, getdns_eventloop_event *event)
 {
+#if !defined(SCHED_DEBUG) || !SCHED_DEBUG
+	(void)fd;
+#endif
 	DEBUG_SCHED( "%s(fd: %d, event: %p)\n", __FUNCTION__, fd, event);
 	event->read_cb(event->userarg);
 }
@@ -166,6 +169,9 @@ default_read_cb(int fd, getdns_eventloop_event *event)
 static void
 default_write_cb(int fd, getdns_eventloop_event *event)
 {
+#if !defined(SCHED_DEBUG) || !SCHED_DEBUG
+	(void)fd;
+#endif
 	DEBUG_SCHED( "%s(fd: %d, event: %p)\n", __FUNCTION__, fd, event);
 	event->write_cb(event->userarg);
 }
@@ -173,6 +179,9 @@ default_write_cb(int fd, getdns_eventloop_event *event)
 static void
 default_timeout_cb(int fd, getdns_eventloop_event *event)
 {
+#if !defined(SCHED_DEBUG) || !SCHED_DEBUG
+	(void)fd;
+#endif
 	DEBUG_SCHED( "%s(fd: %d, event: %p)\n", __FUNCTION__, fd, event);
 	event->timeout_cb(event->userarg);
 }
diff --git a/src/test/tpkg/100-compile.tpkg/100-compile.pre b/src/test/tpkg/100-compile.tpkg/100-compile.pre
index 6b76edba..f0bd9a5c 100644
--- a/src/test/tpkg/100-compile.tpkg/100-compile.pre
+++ b/src/test/tpkg/100-compile.tpkg/100-compile.pre
@@ -25,4 +25,14 @@ done
 rm -fr "${BUILDDIR}/build"
 mkdir  "${BUILDDIR}/build"
 cd "${BUILDDIR}/build"
-"${SRCROOT}/configure" $* --prefix "${BUILDDIR}/install"
+if [ -z "$CFLAGS" ]
+then
+	if (echo $*|grep -q CFLAGS)
+	then
+		"${SRCROOT}/configure" $* --prefix "${BUILDDIR}/install"
+	else
+		"${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --prefix "${BUILDDIR}/install"
+	fi
+else
+	"${SRCROOT}/configure" $* --prefix "${BUILDDIR}/install"
+fi
diff --git a/src/test/tpkg/200-stub-only-compile.tpkg/200-stub-only-compile.pre b/src/test/tpkg/200-stub-only-compile.tpkg/200-stub-only-compile.pre
index 46686828..1aa7252f 100644
--- a/src/test/tpkg/200-stub-only-compile.tpkg/200-stub-only-compile.pre
+++ b/src/test/tpkg/200-stub-only-compile.tpkg/200-stub-only-compile.pre
@@ -25,4 +25,14 @@ done
 rm -fr "${BUILDDIR}/build-stub-only"
 mkdir  "${BUILDDIR}/build-stub-only"
 cd "${BUILDDIR}/build-stub-only"
-"${SRCROOT}/configure" $* --enable-stub-only
+if [ -z "$CFLAGS" ]
+then
+	if (echo $*|grep -q CFLAGS)
+	then
+		"${SRCROOT}/configure" $* --enable-stub-only
+	else
+		"${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-stub-only
+	fi
+else
+	"${SRCROOT}/configure" $* --enable-stub-only
+fi
diff --git a/src/test/tpkg/300-event-loops-configure.tpkg/300-event-loops-configure.test b/src/test/tpkg/300-event-loops-configure.tpkg/300-event-loops-configure.test
index 83ade30b..5242e211 100644
--- a/src/test/tpkg/300-event-loops-configure.tpkg/300-event-loops-configure.test
+++ b/src/test/tpkg/300-event-loops-configure.tpkg/300-event-loops-configure.test
@@ -7,10 +7,32 @@
 rm -fr "${BUILDDIR}/build-event-loops"
 mkdir  "${BUILDDIR}/build-event-loops"
 cd "${BUILDDIR}/build-event-loops"
-"${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent --with-libev --with-libuv \
-    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent --with-libev \
-    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent --with-libuv \
-    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libev --with-libuv \
-    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent \
-    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libev \
-    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libuv
+if [ -z "$CFLAGS" ]
+then
+	if (echo $*|grep -q CFLAGS)
+	then
+		"${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libev --with-libuv \
+		    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libev \
+		    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libuv \
+		    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libev --with-libuv \
+		    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent \
+		    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libev \
+		    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libuv
+	else
+		"${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libev --with-libuv \
+		    || "${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libev \
+		    || "${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libuv \
+		    || "${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libev --with-libuv \
+		    || "${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libevent \
+		    || "${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libev \
+		    || "${SRCROOT}/configure" CFLAGS="-Wpedantic -Werror" $* --enable-all-drafts --with-getdns_query --with-libuv
+	fi
+else
+	"${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libev --with-libuv \
+	    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libev \
+	    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent --with-libuv \
+	    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libev --with-libuv \
+	    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libevent \
+	    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libev \
+	    || "${SRCROOT}/configure" $* --enable-all-drafts --with-getdns_query --with-libuv
+fi
diff --git a/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.dsc b/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.dsc
new file mode 100644
index 00000000..3d1dec87
--- /dev/null
+++ b/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.dsc
@@ -0,0 +1,16 @@
+BaseName: 323-event-loops-configure
+Version: 1.0
+Description: Configure for maximum coverage
+CreationDate: do  8 dec 2016 16:21:08 CET
+Maintainer: Willem Toorop
+Category: 
+Component:
+CmdDepends: 
+Depends: 
+Help:
+Pre: 323-event-loops-configure.pre
+Post:
+Test: 323-event-loops-configure.test
+AuxFiles: 
+Passed:
+Failure:
diff --git a/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.pre b/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.pre
new file mode 100644
index 00000000..a8423666
--- /dev/null
+++ b/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.pre
@@ -0,0 +1,14 @@
+# #-- 323-event-loops-configure.pre--#
+# source the master var file when it's there
+if [ -f ../.tpkg.var.master ]
+then
+	source ../.tpkg.var.master
+else
+	(
+		cd ..
+		[ -f  "${TPKG_SRCDIR}/setup-env.sh" ] \
+		    && sh "${TPKG_SRCDIR}/setup-env.sh" 
+	) && source ../.tpkg.var.master
+fi
+# use .tpkg.var.test for in test variable passing
+[ -f .tpkg.var.test ] && source .tpkg.var.test
diff --git a/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.test b/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.test
new file mode 100644
index 00000000..b54bd321
--- /dev/null
+++ b/src/test/tpkg/323-event-loops-configure.tpkg/323-event-loops-configure.test
@@ -0,0 +1,16 @@
+# #-- 323-event-loops-configure.test --#
+# source the master var file when it's there
+[ -f ../.tpkg.var.master ] && source ../.tpkg.var.master
+# use .tpkg.var.test for in test variable passing
+[ -f .tpkg.var.test ] && source .tpkg.var.test
+
+rm -fr "${BUILDDIR}/build-event-loops"
+mkdir  "${BUILDDIR}/build-event-loops"
+cd "${BUILDDIR}/build-event-loops"
+"${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent --with-libev --with-libuv \
+    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent --with-libev \
+    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent --with-libuv \
+    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libev --with-libuv \
+    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libevent \
+    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libev \
+    || "${SRCROOT}/configure" $* --enable-all-drafts --enable-all-debugging --with-getdns_query --with-libuv
diff --git a/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.dsc b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.dsc
new file mode 100644
index 00000000..c4760a36
--- /dev/null
+++ b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.dsc
@@ -0,0 +1,16 @@
+BaseName: 326-event-loops-compile
+Version: 1.0
+Description: Compile
+CreationDate: do  8 dec 2016 16:21:21 CET
+Maintainer: Willem Toorop
+Category: 
+Component:
+CmdDepends: 
+Depends: 300-event-loops-configure.tpkg
+Help:
+Pre: 326-event-loops-compile.pre
+Post: 326-event-loops-compile.post
+Test: 326-event-loops-compile.test
+AuxFiles: 
+Passed:
+Failure:
diff --git a/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.post b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.post
new file mode 100644
index 00000000..d8029117
--- /dev/null
+++ b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.post
@@ -0,0 +1,20 @@
+# #-- 326-event-loops-compile.post --#
+# source the master var file when it's there
+if [ -f ../.tpkg.var.master ]
+then
+	source ../.tpkg.var.master
+else
+	(
+		cd ..
+		[ -f  "${TPKG_SRCDIR}/setup-env.sh" ] \
+		    && sh "${TPKG_SRCDIR}/setup-env.sh"
+	) && source ../.tpkg.var.master
+fi
+# use .tpkg.var.test for in test variable passing
+[ -f .tpkg.var.test ] && source .tpkg.var.test
+
+for f in `cat restore-srcdir-configure-settings`
+do
+	mv "${SRCROOT}/${f}.build-event-loops" "${SRCROOT}/${f}"
+done
+
diff --git a/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.pre b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.pre
new file mode 100644
index 00000000..a4ef762d
--- /dev/null
+++ b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.pre
@@ -0,0 +1,24 @@
+# #-- 326-event-loops-compile.pre--#
+# source the master var file when it's there
+if [ -f ../.tpkg.var.master ]
+then
+	source ../.tpkg.var.master
+else
+	(
+		cd ..
+		[ -f  "${TPKG_SRCDIR}/setup-env.sh" ] \
+		    && sh "${TPKG_SRCDIR}/setup-env.sh" 
+	) && source ../.tpkg.var.master
+fi
+# use .tpkg.var.test for in test variable passing
+[ -f .tpkg.var.test ] && source .tpkg.var.test
+
+echo "" > restore-srcdir-configure-settings
+for f in `grep 'CONFIG_[FH][IE][LA][ED][SE]' "${SRCROOT}/configure.ac" | sed -e 's/^.*(\[//g' -e 's/\])//g'`
+do
+	if [ -f "${SRCROOT}/$f" ]
+	then
+		mv "${SRCROOT}/${f}" "${SRCROOT}/${f}.build-event-loops" && \
+			echo "$f" >> restore-srcdir-configure-settings
+	fi
+done
diff --git a/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.test b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.test
new file mode 100644
index 00000000..217cfd35
--- /dev/null
+++ b/src/test/tpkg/326-event-loops-compile.tpkg/326-event-loops-compile.test
@@ -0,0 +1,8 @@
+# #-- 326-event-loops-compile.test --#
+# source the master var file when it's there
+[ -f ../.tpkg.var.master ] && source ../.tpkg.var.master
+# use .tpkg.var.test for in test variable passing
+[ -f .tpkg.var.test ] && source .tpkg.var.test
+
+cd "${BUILDDIR}/build-event-loops"
+make
diff --git a/src/tools/getdns_query.c b/src/tools/getdns_query.c
index ecd16c65..71d4f015 100644
--- a/src/tools/getdns_query.c
+++ b/src/tools/getdns_query.c
@@ -1372,6 +1372,8 @@ static void request_cb(
 
 	if (qname_str != unknown_qname)
 		free(qname_str);
+#else
+	(void)transaction_id;
 #endif
 	assert(msg);
 
diff --git a/src/types-internal.h b/src/types-internal.h
index 356f2353..06eea0da 100644
--- a/src/types-internal.h
+++ b/src/types-internal.h
@@ -287,29 +287,29 @@ typedef struct getdns_dns_req {
 	getdns_append_name_t append_name;
 	const uint8_t *suffix;
 	size_t  suffix_len;
-	int suffix_appended			: 1;
+	unsigned suffix_appended			: 1;
 
 	/* canceled flag */
-	int canceled				: 1;
+	unsigned canceled				: 1;
 
 	/* request extensions */
-	int dnssec_return_status		: 1;
-	int dnssec_return_only_secure		: 1;
-	int dnssec_return_all_statuses		: 1;
-	int dnssec_return_validation_chain	: 1;
-	int dnssec_return_full_validation_chain	: 1;
+	unsigned dnssec_return_status			: 1;
+	unsigned dnssec_return_only_secure		: 1;
+	unsigned dnssec_return_all_statuses		: 1;
+	unsigned dnssec_return_validation_chain		: 1;
+	unsigned dnssec_return_full_validation_chain	: 1;
 #ifdef DNSSEC_ROADBLOCK_AVOIDANCE
-	int dnssec_roadblock_avoidance		: 1;
-	int avoid_dnssec_roadblocks		: 1;
+	unsigned dnssec_roadblock_avoidance		: 1;
+	unsigned avoid_dnssec_roadblocks		: 1;
 #endif
-	int edns_cookies			: 1;
-	int edns_client_subnet_private		: 1;
-	int return_call_reporting		: 1;
-	int add_warning_for_bad_dns		: 1;
+	unsigned edns_cookies				: 1;
+	unsigned edns_client_subnet_private		: 1;
+	unsigned return_call_reporting			: 1;
+	unsigned add_warning_for_bad_dns		: 1;
 
 	/* Internally used by return_validation_chain */
-	int dnssec_ok_checking_disabled		: 1;
-	int is_sync_request			: 1;
+	unsigned dnssec_ok_checking_disabled		: 1;
+	unsigned is_sync_request			: 1;
 
 	/* The validating and freed variables are used to make sure a single
 	 * code path is followed while processing a DNS request, even when
@@ -319,7 +319,7 @@ typedef struct getdns_dns_req {
 	 * validating is touched by _getdns_get_validation_chain only and
 	 * freed      is touched by _getdns_submit_netreq only
 	 */
-	int validating                          : 1;
+	unsigned validating				: 1;
 	int *freed;
 
 	uint16_t tls_query_padding_blocksize;
diff --git a/src/ub_loop.c b/src/ub_loop.c
index c0040289..1fc9daa7 100644
--- a/src/ub_loop.c
+++ b/src/ub_loop.c
@@ -115,9 +115,9 @@ typedef struct my_event {
 } my_event;
 
 #define AS_UB_LOOP(x) \
-	(((union {struct ub_event_base* a; _getdns_ub_loop* b;})x).b)
+	((_getdns_ub_loop *)(x))
 #define AS_MY_EVENT(x) \
-	(((union {struct ub_event* a; my_event* b;})x).b)
+	((my_event *)(x))
 
 static void my_event_base_free(struct ub_event_base* base)
 {